利用GOCE卫星数据计算日本地震区域重力异常

Study on GOCE Satellite Data Application in the Gravity Anomaly Calculation in the Japanese Earthquake Area

依据卫星重力探测技术在地球动力学应用研究中的优越性,利用GOCE卫星重力梯度测量计算重力场信息的原理,针对2011年Ms9.0级日本大地震期间GOCE重力场数据实验计算了日本及邻近区域重力异常情况,对比分析了GRACE卫星数据结果的异同,说明两种不同探测技术的特点,初步探讨了GOCE卫星重力资料在地震中重要的参考价值。

According to the superiority of satellite gravity detection technology in the application of geodynamics,using the principle of GOCE satellite gravity gradient measurement to calculate gravity field information,based on the data of GOCE gravity field during the 2011 MS 9.0 earthquake in Japan,the gravity anomalies in Japan and adjacent regions are calculated.The similarities and differences of the results of the grace satellite data are compared and analyzed,and the characteristics of the two different detection techniques are explained.The important reference value of GOCE satellite gravity data in earthquake is discussed.